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LG A3UH363FA0 Control Board
The LG A3UH363FA0 control board is constructed to control the gas valve, the igniter, the flame sensor as well as the blower all at once. Your system definitely will not operate without the control board configured and seated properly. Be absolutely sure when you choose a control board because of the wide variety of systems. The chosen circuit board is supposed to have a part number that matches both the brand and model of the unit you have installed.
Important clues of an unhealthy primary control board
- Your HVAC unit refuses to start correctly
- There may be a fault code revealed on the board
- Power to the circuit board has to be powered down and back up quite often for it to run
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